Question 2 Not yet answered Points out of 1.00 A polypeptide is mainly extracell

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Question 2 Not yet answered Points out of 1.00 A polypeptide is mainly extracellular however the last 4 amino acids of this protein remain embedded in the membrane bilayer. Based on your knowledge about proteins, which of the following sequences most probably identifies the last four amino acids in this polypeptide? Remove flag Select one: O a. Asp-Ser-Gly-Tyr O b. Asp-Val-Gly-Ser O c. Ala-Glu-Phe-Arg O d. Val-Val-lle-Ala O e. Lys-Val-His-His-Gln Question 3 Not yet answered iven you the best evidence Points out of 1.00 If you were interested in determining if a certain protein was a homolog of another protein, which would Select one: O a. Similar NMR spectrum O b. Similar amino acid composition O C. Similar molecular weight O d. Remove flag Similar pl

Explanation / Answer

2 Ans d: the four amino acid sequence is Valine-Valine-Isoleucine-Alanine(Val-Val-Ile-Ala), because these are the amino acids havind polar hydrophobic side chain group. since these amino acids have non-polar hydrophobic side chains thesse last 4 amino acids embended in the membrane bilayer that is away from the aquous environment.

3 Ans b: based on similar amino acid composition (sequence) the protein is determine toahomolog of another protein.

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